A cold storage wall surface heat preservation structure
By constructing a combined structure of polyurethane sandwich panels and a surface polyurethane insulation layer on the walls of old buildings, the problem of insufficient bonding strength of the insulation layer when converting old buildings into cold storage is solved, achieving efficient and stable cold storage insulation effect, and suitable for complex construction conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI SHUNDA POLYURETHANE CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-28
AI Technical Summary
When converting old buildings into cold storage facilities, the poor adhesion between the existing building wall surface and the polyurethane cyanopolymer material leads to insufficient bonding strength of the insulation layer, increasing the risk of detachment in low-temperature service environments. Existing removal methods are inefficient and costly, affecting the insulation performance and safety of the cold storage facility.
The method of constructing polyurethane sandwich panels and surface polyurethane insulation layers on old walls is adopted. Through the combination structure of C-shaped steel, T-shaped wooden piles and polyurethane sandwich panels, combined with the separate mushroom head bolts and nail guns for fixing between the polyurethane sandwich panels and the boards, and the addition of horizontal anti-corrosion wooden keel and outer protective color steel plate, a stable insulation layer structure is formed.
It shortens the construction cycle, enhances the bonding effect between the insulation layer and the board, improves the airtightness and stability of the insulation layer, avoids detachment, meets the needs of different construction conditions, and improves the insulation performance and safety of cold storage.
Smart Images
Figure CN224565476U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cold storage insulation technology, and in particular to a cold storage wall insulation structure. Background Technology
[0002] With the sustained and rapid development of the economy, the cold chain logistics industry, as a key area for ensuring the circulation of fresh food and improving the quality of people's livelihood, is showing a trend of large-scale and professional development. Cold storage, as a core supporting infrastructure in the cold chain logistics system, is increasingly highlighting its functional value driven by the demands of food processing, pharmaceutical storage, and fresh food e-commerce. Among these developments, the engineering model of converting existing old factories and warehouses into cold storage facilities has become one of the important development directions in the current cold storage construction field due to its ability to effectively revitalize existing building resources and reduce construction costs. However, in the actual engineering of converting old buildings into cold storage facilities, significant technical challenges are encountered. On the one hand, the interior of the cold storage needs to be rearranged according to the functional division of the cold rooms, which inevitably involves the construction of new walls, placing high demands on the spatial adaptability and feasibility of the original building structure. On the other hand, the surface of the original building walls usually retains plaster layers, putty layers, and other attachments formed during the original construction process. These attachments have poor interfacial adhesion to the polyurethane cyanuric acid materials commonly used in cold storage wall insulation construction, directly leading to insufficient bonding strength between the insulation layer and the wall substrate. This significantly increases the risk of the insulation layer delaminating and falling off in low-temperature service environments, thereby affecting the insulation performance and operational safety of the cold storage. Furthermore, existing methods for removing these original putty layers mostly rely on manual scraping, which is not only inefficient but also requires a large investment of manpower, leading to extended construction periods and increased overall costs. This severely restricts the efficiency and economy of converting old buildings into cold storage facilities. Therefore, this utility model proposes a cold storage wall insulation structure to solve the problems existing in the prior art. Utility Model Content
[0003] To address the aforementioned issues, this utility model proposes a cold storage wall insulation structure. This structure involves directly constructing polyurethane sandwich panels and spraying a polyurethane insulation layer onto the existing wall, which significantly shortens the construction cycle and improves construction progress.
[0004] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a cold storage wall insulation structure, including a wall and a polyurethane sandwich panel, wherein C-shaped steel is installed on the surface of the wall, the polyurethane sandwich panel is installed on the outside of the C-shaped steel, a polyurethane insulation layer is sprayed on the surface of the polyurethane sandwich panel, and T-shaped wooden stakes are installed on the surface of the polyurethane sandwich panel. The end of the T-shaped wooden pile is equipped with a horizontal anti-corrosion wooden joist, and the surface of the horizontal anti-corrosion wooden joist is equipped with an outer protective color steel plate.
[0005] A further improvement is that the wall surface is covered with plaster and putty.
[0006] A further improvement is that concrete columns are provided at both ends of the wall, and the C-shaped steel is installed between the two sets of concrete columns.
[0007] A further improvement is that angle irons are provided at both ends of the C-shaped steel, and the angle irons are fixed to the concrete column by expansion bolts.
[0008] A further improvement is that the C-shaped steel and the polyurethane sandwich panel are fixed together by separate mushroom-head bolts.
[0009] A further improvement is that the T-shaped wooden stake and the polyurethane sandwich panel are fixed together by a nail gun.
[0010] A further improvement is that the polyurethane insulation layer is applied using a layered spraying process.
[0011] A further improvement is that the outer protective color steel plate is fixed to the horizontal anti-corrosion wooden keel with stainless steel self-tapping screws.
[0012] The beneficial effects of this utility model are as follows: 1. The present invention's method of directly constructing polyurethane sandwich panels and spraying a polyurethane insulation layer on the surface of existing walls significantly shortens the construction cycle and improves construction progress. Spraying a polyurethane insulation layer onto the surface of the polyurethane sandwich panels not only enhances the bonding effect between the polyurethane and the panels, making the polyurethane insulation layer and the panels more stable and robust, but also covers the gaps between the assembled panels, resulting in better airtightness of the wall insulation layer. The overall construction is simpler and faster, and can fully guarantee the quality and performance of the entire cold storage insulation system throughout its service life.
[0013] 2. This utility model greatly improves the overall stability and airtightness of wall insulation, avoids the detachment of the insulation layer, has a high degree of safety, can meet the construction needs of various conditions of the construction party, and has good applicability to projects with complex construction conditions. Attached Figure Description
[0014] Figure 1 This is a side sectional view of the present invention; Figure 2 This is a schematic diagram of the C-shaped steel installation according to this utility model.
[0015] The components include: 1. Wall; 2. Polyurethane sandwich panel; 3. C-shaped steel; 4. Polyurethane insulation layer; 5. T-shaped wooden piles; 6. Horizontal anti-corrosion wooden keel; 7. Outer protective color steel plate; 8. Concrete column; 9. Angle iron; 10. Expansion bolt; 11. Split mushroom head bolt. Detailed Implementation
[0016] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.
[0017] Example 1 according to Figure 1 , 2 As shown, this embodiment proposes a cold storage wall insulation structure, including a wall 1 and a polyurethane sandwich panel 2. C-shaped steel 3 is installed on the surface of the wall 1, and the polyurethane sandwich panel 2 is installed on the outside of the C-shaped steel 3. A polyurethane insulation layer 4 is sprayed on the surface of the polyurethane sandwich panel 2, and T-shaped wooden stakes 5 are installed on the surface of the polyurethane sandwich panel 2. The ends of the T-shaped wooden piles 5 are fitted with horizontal anti-corrosion wooden joists 6, and the surfaces of the horizontal anti-corrosion wooden joists 6 are fitted with outer protective color steel plates 7. The method of directly constructing polyurethane sandwich panels 2 and spraying the surface polyurethane insulation layer 4 on the existing wall 1 significantly shortens the construction cycle and improves construction progress. Spraying the polyurethane insulation layer 4 onto the surface of the polyurethane sandwich panels 2 not only enhances the bonding effect between the polyurethane and the panels, making the polyurethane insulation layer 4 more stable and robust, but also covers the gaps between the assembled panels, resulting in better airtightness of the wall insulation layer. The overall construction is simpler and faster, fully guaranteeing the quality and performance of the entire cold storage insulation system throughout its service life.
[0018] The wall surface of the wall 1 is plastered and puttyed. Concrete columns 8 are provided at both ends of the wall 1, and the C-shaped steel 3 is installed between the two sets of concrete columns 8. Angle irons 9 are provided at both ends of the C-shaped steel 3, and the angle irons 9 are fixed to the concrete columns 8 by expansion bolts 10. The C-shaped steel 3 is more securely fixed to the concrete columns 8 by angle irons 9 and expansion bolts 10.
[0019] The C-shaped steel 3 and the polyurethane sandwich panel 2 are fixed together by split mushroom head bolts 11. The use of split mushroom head bolts 11 for fixing is firm and convenient. The polyurethane sandwich panel 2 is manufactured in the factory and transported to the project site for assembly and construction.
[0020] The T-shaped wooden stake 5 and the polyurethane sandwich panel 2 are fixed together using a nail gun. This makes construction simpler and faster.
[0021] Example 2 according to Figure 1 , 2 As shown, this embodiment proposes a cold storage wall insulation structure, including a wall 1 and a polyurethane sandwich panel 2. C-shaped steel 3 is installed on the surface of the wall 1, and the polyurethane sandwich panel 2 is installed on the outside of the C-shaped steel 3. A polyurethane insulation layer 4 is sprayed on the surface of the polyurethane sandwich panel 2, and T-shaped wooden stakes 5 are installed on the surface of the polyurethane sandwich panel 2. The ends of the T-shaped wooden piles 5 are fitted with horizontal anti-corrosion wooden joists 6, and the surfaces of the horizontal anti-corrosion wooden joists 6 are fitted with outer protective color steel plates 7. The method of directly constructing polyurethane sandwich panels 2 and spraying the surface polyurethane insulation layer 4 on the existing wall 1 significantly shortens the construction cycle and improves construction progress. Spraying the polyurethane insulation layer 4 onto the surface of the polyurethane sandwich panels 2 not only enhances the bonding effect between the polyurethane and the panels, making the polyurethane insulation layer 4 more stable and robust, but also covers the gaps between the assembled panels, resulting in better airtightness of the wall insulation layer. The overall construction is simpler and faster, fully guaranteeing the quality and performance of the entire cold storage insulation system throughout its service life.
[0022] The T-shaped wooden stake 5 and the polyurethane sandwich panel 2 are fixed together using a nail gun. This makes construction simpler and faster.
[0023] The polyurethane insulation layer 4 is applied in layers by spraying. The outer protective color steel plate 7 is fixed to the horizontal anti-corrosion wooden keel 6 with stainless steel self-tapping screws. This greatly improves the overall stability and airtightness of the wall insulation, prevents the insulation layer from falling off, ensures high safety, meets the construction needs of various conditions, and is suitable for projects with complex construction conditions.
[0024] The method of directly constructing polyurethane sandwich panels 2 and spraying a polyurethane insulation layer 4 on the surface of the existing wall 1 for cold storage wall insulation structure significantly shortens the construction cycle and improves the construction progress. Spraying the polyurethane insulation layer 4 onto the surface of the polyurethane sandwich panels 2 not only enhances the bonding effect between the polyurethane and the panels, making the polyurethane insulation layer 4 more stable and robust, but also covers the gaps between the assembled panels, resulting in better airtightness of the wall insulation layer. The overall construction is simpler and faster, fully guaranteeing the quality and performance of the entire cold storage insulation system throughout its service life. Furthermore, this structure greatly improves the overall stability and airtightness of the wall insulation, preventing insulation layer detachment, ensuring high safety, and meeting the construction needs of various conditions. It is also highly applicable to projects with complex construction conditions.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A cold storage wall insulation structure, comprising a wall (1) and a polyurethane sandwich panel (2), characterized in that: The surface of the wall (1) is equipped with C-shaped steel (3), the polyurethane sandwich panel (2) is installed on the outside of the C-shaped steel (3), the surface of the polyurethane sandwich panel (2) is sprayed with a polyurethane insulation layer (4), and T-shaped wooden piles (5) are installed on the surface of the polyurethane sandwich panel (2). The end of the T-shaped wooden stake (5) is equipped with a horizontal anti-corrosion wooden joist (6), and the surface of the horizontal anti-corrosion wooden joist (6) is equipped with an outer protective color steel plate (7).
2. The cold storage wall insulation structure according to claim 1, characterized in that: The wall surface of the wall (1) is covered with plaster and putty.
3. The cold storage wall insulation structure according to claim 1, characterized in that: Concrete columns (8) are provided at both ends of the wall (1), and the C-shaped steel (3) is installed between the two sets of concrete columns (8).
4. The cold storage wall insulation structure according to claim 3, characterized in that: Both ends of the C-shaped steel (3) are provided with angle irons (9), and the angle irons (9) are fixed to the concrete column (8) by expansion bolts (10).
5. The cold storage wall insulation structure according to claim 1, characterized in that: The C-shaped steel (3) and the polyurethane sandwich panel (2) are fixed together by split mushroom head bolts (11).
6. The cold storage wall insulation structure according to claim 1, characterized in that: The T-shaped wooden stake (5) and the polyurethane sandwich panel (2) are fixed together by a nail gun.
7. The cold storage wall insulation structure according to claim 1, characterized in that: The polyurethane insulation layer (4) is applied by layered spraying.
8. The cold storage wall insulation structure according to claim 1, characterized in that: The outer protective color steel plate (7) is fixed to the horizontal anti-corrosion wood keel (6) by stainless steel self-tapping screws.